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shell32: Fix the logic in Control_LoadApplet determining when to use CPL_INQUIRE and when to use CPL_NEWINQUIRE. 

Previously, the code would fail to get the name of an applet that didn't 
return an icon for CPL_NEWINQUIRE and didn't return set either idName or 
idIcon to a non-zero value for CPL_INQUIRE.

Fix this by sending CPL_INQUIRE first and loading any strings or icon 
specified and then only fall back to CPL_NEWINQUIRE if any of the 
required members were zero (i.e. CPL_DYNAMIC_RES) and then only fill in 
these fields.
This commit is contained in:
Rob Shearman 2008-02-13 21:30:53 +00:00 committed by Alexandre Julliard
parent c8b626fa1d
commit c627a81a76
1 changed files with 42 additions and 33 deletions
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75
dlls/shell32/control.c
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@ -92,45 +92,54 @@ CPlApplet* Control_LoadApplet(HWND hWnd, LPCWSTR cmd, CPanel* panel)
ZeroMemory(&newinfo, sizeof(newinfo));
newinfo.dwSize = sizeof(NEWCPLINFOA);
applet->info[i].dwSize = sizeof(NEWCPLINFOW);
applet->info[i].dwFlags = 0;
applet->info[i].dwHelpContext = 0;
applet->info[i].szHelpFile[0] = '\0';
/* proc is supposed to return a null value upon success for
* CPL_INQUIRE and CPL_NEWINQUIRE
* However, real drivers don't seem to behave like this
* So, use introspection rather than return value
*/
applet->proc(hWnd, CPL_NEWINQUIRE, i, (LPARAM)&newinfo);
if (newinfo.hIcon == 0) {
applet->proc(hWnd, CPL_INQUIRE, i, (LPARAM)&info);
if (info.idIcon == 0 || info.idName == 0) {
WARN("Couldn't get info from sp %u\n", i);
applet->info[i].dwSize = 0;
} else {
/* convert the old data into the new structure */
applet->info[i].dwFlags = 0;
applet->info[i].dwHelpContext = 0;
applet->info[i].lData = info.lData;
applet->info[i].hIcon = LoadIconW(applet->hModule,
MAKEINTRESOURCEW(info.idIcon));
LoadStringW(applet->hModule, info.idName,
applet->info[i].szName, sizeof(applet->info[i].szName) / sizeof(WCHAR));
LoadStringW(applet->hModule, info.idInfo,
applet->info[i].szInfo, sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
applet->info[i].szHelpFile[0] = '\0';
applet->proc(hWnd, CPL_INQUIRE, i, (LPARAM)&info);
applet->info[i].lData = info.lData;
if (info.idIcon != CPL_DYNAMIC_RES)
applet->info[i].hIcon = LoadIconW(applet->hModule,
MAKEINTRESOURCEW(info.idIcon));
if (info.idName != CPL_DYNAMIC_RES)
LoadStringW(applet->hModule, info.idName,
applet->info[i].szName, sizeof(applet->info[i].szName) / sizeof(WCHAR));
if (info.idInfo != CPL_DYNAMIC_RES)
LoadStringW(applet->hModule, info.idInfo,
applet->info[i].szInfo, sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
if ((info.idIcon == CPL_DYNAMIC_RES) || (info.idName == CPL_DYNAMIC_RES) ||
(info.idInfo == CPL_DYNAMIC_RES)) {
applet->proc(hWnd, CPL_NEWINQUIRE, i, (LPARAM)&newinfo);
applet->info[i].dwFlags = newinfo.dwFlags;
applet->info[i].dwHelpContext = newinfo.dwHelpContext;
applet->info[i].lData = newinfo.lData;
if (info.idIcon == CPL_DYNAMIC_RES) {
if (!newinfo.hIcon) WARN("couldn't get icon for applet %u\n", i);
applet->info[i].hIcon = newinfo.hIcon;
}
}
else
{
CopyMemory(&applet->info[i], &newinfo, newinfo.dwSize);
if (newinfo.dwSize != sizeof(NEWCPLINFOW))
{
applet->info[i].dwSize = sizeof(NEWCPLINFOW);
MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szName,
sizeof(((LPNEWCPLINFOA)&newinfo)->szName) / sizeof(CHAR),
applet->info[i].szName,
sizeof(applet->info[i].szName) / sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szInfo,
sizeof(((LPNEWCPLINFOA)&newinfo)->szInfo) / sizeof(CHAR),
applet->info[i].szInfo,
sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
if (newinfo.dwSize == sizeof(NEWCPLINFOW)) {
if (info.idName == CPL_DYNAMIC_RES)
memcpy(applet->info[i].szName, newinfo.szName, sizeof(newinfo.szName));
if (info.idInfo == CPL_DYNAMIC_RES)
memcpy(applet->info[i].szInfo, newinfo.szInfo, sizeof(newinfo.szInfo));
memcpy(applet->info[i].szHelpFile, newinfo.szHelpFile, sizeof(newinfo.szHelpFile));
} else {
if (info.idName == CPL_DYNAMIC_RES)
MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szName,
sizeof(((LPNEWCPLINFOA)&newinfo)->szName) / sizeof(CHAR),
applet->info[i].szName,
sizeof(applet->info[i].szName) / sizeof(WCHAR));
if (info.idInfo == CPL_DYNAMIC_RES)
MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szInfo,
sizeof(((LPNEWCPLINFOA)&newinfo)->szInfo) / sizeof(CHAR),
applet->info[i].szInfo,
sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szHelpFile,
sizeof(((LPNEWCPLINFOA)&newinfo)->szHelpFile) / sizeof(CHAR),
applet->info[i].szHelpFile,