259 lines
6.5 KiB
C
259 lines
6.5 KiB
C
/*
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* Windows Properties Functions
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*/
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static char Copyright[] = "Copyright Martin Ayotte, 1994";
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/*
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#define DEBUG_PROP
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "windows.h"
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#include "heap.h"
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#include "win.h"
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typedef struct tagPROPENTRY {
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LPSTR PropName;
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WORD Atom;
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HANDLE hData;
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struct tagPROPENTRY *lpPrevProp;
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struct tagPROPENTRY *lpNextProp;
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} PROPENTRY;
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typedef PROPENTRY *LPPROPENTRY;
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/*************************************************************************
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* RemoveProp [USER.24]
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*/
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HANDLE RemoveProp(HWND hWnd, LPSTR lpStr)
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{
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WND *wndPtr;
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LPPROPENTRY lpProp;
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HANDLE hOldData;
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#ifdef DEBUG_PROP
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if (((DWORD)lpStr & 0xFFFF0000) == 0L)
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printf("RemoveProp(%04X, Atom %04X)\n", hWnd, LOWORD((DWORD)lpStr));
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else
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printf("RemoveProp(%04X, '%s')\n", hWnd, lpStr);
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#endif
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wndPtr = WIN_FindWndPtr(hWnd);
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if (wndPtr == NULL) {
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printf("RemoveProp // Bad Window handle !\n");
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return FALSE;
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}
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lpProp = (LPPROPENTRY) GlobalLock(wndPtr->hProp);
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if (lpProp == NULL) {
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#ifdef DEBUG_PROP
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printf("Property List Empty !\n");
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#endif
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return 0;
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}
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while (TRUE) {
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if ((((DWORD)lpStr & 0xFFFF0000) == 0L &&
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lpProp->Atom == LOWORD((DWORD)lpStr)) ||
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(((DWORD)lpStr & 0xFFFF0000) != 0L &&
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lpProp->PropName != NULL &&
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strcmp(lpProp->PropName, lpStr) == 0)) {
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#ifdef DEBUG_PROP
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printf("RemoveProp // Property found ! hData=%04X\n", lpProp->hData);
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#endif
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hOldData = lpProp->hData;
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if (lpProp->lpPrevProp != NULL)
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lpProp->lpPrevProp->lpNextProp = lpProp->lpNextProp;
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if (lpProp->lpNextProp != NULL)
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lpProp->lpNextProp->lpPrevProp = lpProp->lpPrevProp;
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if (lpProp->PropName != NULL) free(lpProp->PropName);
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GlobalFree(lpProp);
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GlobalUnlock(wndPtr->hProp);
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return hOldData;
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}
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if (lpProp->lpNextProp == NULL) break;
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lpProp = lpProp->lpNextProp;
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}
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GlobalUnlock(wndPtr->hProp);
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#ifdef DEBUG_PROP
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printf("RemoveProp // Property not found !\n");
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#endif
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return 0;
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}
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/*************************************************************************
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* GetProp [USER.25]
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*/
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HANDLE GetProp(HWND hWnd, LPSTR lpStr)
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{
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WND *wndPtr;
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LPPROPENTRY lpProp;
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#ifdef DEBUG_PROP
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if (((DWORD)lpStr & 0xFFFF0000) == 0L)
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printf("GetProp(%04X, Atom %04X)\n", hWnd, LOWORD((DWORD)lpStr));
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else
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printf("GetProp(%04X, '%s')\n", hWnd, lpStr);
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#endif
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wndPtr = WIN_FindWndPtr(hWnd);
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if (wndPtr == NULL) {
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printf("GetProp // Bad Window handle !\n");
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return 0;
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}
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lpProp = (LPPROPENTRY) GlobalLock(wndPtr->hProp);
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if (lpProp == NULL) {
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#ifdef DEBUG_PROP
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printf("Property List Empty !\n");
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#endif
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return 0;
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}
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while (TRUE) {
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if ((((DWORD)lpStr & 0xFFFF0000) == 0L &&
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lpProp->Atom == LOWORD((DWORD)lpStr)) ||
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(((DWORD)lpStr & 0xFFFF0000) != 0L &&
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lpProp->PropName != NULL &&
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strcmp(lpProp->PropName, lpStr) == 0)) {
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#ifdef DEBUG_PROP
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printf("GetProp // Property found ! hData=%04X\n", lpProp->hData);
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#endif
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GlobalUnlock(wndPtr->hProp);
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return lpProp->hData;
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}
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if (lpProp->lpNextProp == NULL) break;
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lpProp = lpProp->lpNextProp;
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}
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#ifdef DEBUG_PROP
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printf("GetProp // Property not found !\n");
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#endif
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GlobalUnlock(wndPtr->hProp);
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return 0;
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}
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/*************************************************************************
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* SetProp [USER.26]
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*/
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BOOL SetProp(HWND hWnd, LPSTR lpStr, HANDLE hData)
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{
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WND *wndPtr;
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HANDLE hNewProp;
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LPPROPENTRY lpNewProp;
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LPPROPENTRY lpProp;
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#ifdef DEBUG_PROP
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if (((DWORD)lpStr & 0xFFFF0000) == 0L)
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printf("SetProp(%04X, Atom %04X, %04X)\n",
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hWnd, LOWORD((DWORD)lpStr), hData);
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else
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printf("SetProp(%04X, '%s', %04X)\n", hWnd, lpStr, hData);
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#endif
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wndPtr = WIN_FindWndPtr(hWnd);
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if (wndPtr == NULL) {
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printf("SetProp // Bad Window handle !\n");
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return FALSE;
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}
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lpProp = (LPPROPENTRY) GlobalLock(wndPtr->hProp);
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if (lpProp != NULL) {
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while (TRUE) {
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if ((((DWORD)lpStr & 0xFFFF0000) == 0L &&
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lpProp->Atom == LOWORD((DWORD)lpStr)) ||
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(((DWORD)lpStr & 0xFFFF0000) != 0L &&
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lpProp->PropName != NULL &&
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strcmp(lpProp->PropName, lpStr) == 0)) {
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#ifdef DEBUG_PROP
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printf("SetProp // change already exinsting property !\n");
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#endif
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lpProp->hData = hData;
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GlobalUnlock(wndPtr->hProp);
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return TRUE;
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}
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if (lpProp->lpNextProp == NULL) break;
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lpProp = lpProp->lpNextProp;
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}
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}
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hNewProp = GlobalAlloc(GMEM_MOVEABLE, sizeof(PROPENTRY));
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lpNewProp = (LPPROPENTRY) GlobalLock(hNewProp);
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if (lpNewProp == NULL) {
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printf("SetProp // Can't allocate Property entry !\n");
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GlobalUnlock(wndPtr->hProp);
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return FALSE;
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}
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#ifdef DEBUG_PROP
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printf("SetProp // entry allocated %08X\n", lpNewProp);
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#endif
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if (lpProp == NULL) {
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wndPtr->hProp = hNewProp;
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lpNewProp->lpPrevProp = NULL;
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#ifdef DEBUG_PROP
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printf("SetProp // first entry \n");
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#endif
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}
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else {
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lpProp->lpNextProp = lpNewProp;
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lpNewProp->lpPrevProp = lpProp;
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}
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lpNewProp->lpNextProp = NULL;
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lpNewProp->hData = hData;
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if (((DWORD)lpStr & 0xFFFF0000) == 0L) {
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lpNewProp->PropName = NULL;
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lpNewProp->Atom = LOWORD((DWORD)lpStr);
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}
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else {
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lpNewProp->Atom = 0;
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lpNewProp->PropName = malloc(strlen(lpStr) + 1);
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if (lpNewProp->PropName == NULL) {
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printf("SetProp // Can't allocate memory for Property Name !\n");
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GlobalUnlock(wndPtr->hProp);
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return FALSE;
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}
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strcpy(lpNewProp->PropName, lpStr);
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}
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GlobalUnlock(hNewProp);
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GlobalUnlock(wndPtr->hProp);
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return TRUE;
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}
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/*************************************************************************
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* EnumProps [USER.27]
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*/
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int EnumProps(HWND hWnd, FARPROC lpEnumFunc)
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{
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WND *wndPtr;
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LPPROPENTRY lpProp;
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LPSTR str;
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int nRet;
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printf("EnumProps(%04X, %08X)\n", hWnd, lpEnumFunc);
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wndPtr = WIN_FindWndPtr(hWnd);
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if (wndPtr == NULL) {
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printf("EnumProps // Bad Window handle !\n");
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return 0;
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}
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lpProp = (LPPROPENTRY) GlobalLock(wndPtr->hProp);
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if (lpProp == NULL) {
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printf("Property List Empty !\n");
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return 0;
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}
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if (lpEnumFunc != NULL) return 0;
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while (TRUE) {
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printf("EnumProps // lpProp->Atom=%04X !\n", lpProp->Atom);
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str = (LPSTR)MAKELONG(lpProp->Atom, 0);
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if (lpProp->PropName != NULL) {
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printf("EnumProps // lpProp->PropName='%s' !\n", lpProp->PropName);
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str = lpProp->PropName;
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}
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#ifdef WINELIB
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nRet = (*lpEnumFunc)((HWND)hWnd, (WORD)0,
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(LPSTR)str, (HANDLE)lpProp->hData);
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#else
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nRet = CallBack16(lpEnumFunc, 4, (HANDLE)lpProp->hData,
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(LPSTR)str, (WORD)0, (HWND)hWnd);
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#endif
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if (nRet == 0) break;
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if (lpProp->lpNextProp == NULL) break;
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lpProp = lpProp->lpNextProp;
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}
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GlobalUnlock(wndPtr->hProp);
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return 0;
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}
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