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Use the screen resolution to convert from twips (1440 twips is one 

inch) to pixels.
This commit is contained in:
Rein Klazes 2005-05-25 18:01:15 +00:00 committed by Alexandre Julliard
parent 0844afc310
commit 67747801cd
1 changed files with 24 additions and 19 deletions
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43
dlls/user/sysparams.c
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@ -565,16 +565,18 @@ static BOOL SYSPARAMS_Save( LPCWSTR lpRegKey, LPCWSTR lpValName, LPCWSTR lpValue
*
* Convert a dimension value that was obtained from the registry. These are
* quoted as being "twips" values if negative and pixels if positive.
* One inch is 1440 twips. So to convert, divide by 1440 to get inches and
* multiply that by the dots-per-inch to get the size in pixels.
* See for example
* MSDN Library - April 2001 -> Resource Kits ->
* Windows 2000 Resource Kit Reference ->
* Technical Reference to the Windows 2000 Registry ->
* HKEY_CURRENT_USER -> Control Panel -> Desktop -> WindowMetrics
*/
inline static int SYSPARAMS_Twips2Pixels(int x)
inline static int SYSPARAMS_Twips2Pixels(int x, int dpi)
{
if (x < 0)
x = (-x+7)/15;
x = (-x*dpi+720)/1440;
return x;
}
@ -587,7 +589,7 @@ inline static int SYSPARAMS_Twips2Pixels(int x)
* Of course this function belongs somewhere more usable but here will do
* for now.
*/
static int SYSPARAMS_GetRegistryMetric( HKEY hkey, LPCWSTR lpValName, int default_value )
static int SYSPARAMS_GetRegistryMetric( HKEY hkey, LPCWSTR lpValName, int default_value, int dpi)
{
int value = default_value;
if (hkey)
@ -607,7 +609,7 @@ static int SYSPARAMS_GetRegistryMetric( HKEY hkey, LPCWSTR lpValName, int defaul
value = atoiW(buffer);
}
}
return SYSPARAMS_Twips2Pixels(value);
return SYSPARAMS_Twips2Pixels(value, dpi);
}
@ -660,27 +662,27 @@ void SYSPARAMS_Init(void)
WCHAR buf[10];
INT border;
CPINFO cpinfo;
int i, r, g, b;
int i, r, g, b, dpi;
char buffer[100];
HBITMAP h55AABitmap;
display_dc = CreateICW( DISPLAY, NULL, NULL, NULL );
assert( display_dc );
dpi = GetDeviceCaps( display_dc, LOGPIXELSY);
if (RegOpenKeyExW (HKEY_CURRENT_USER, METRICS_REGKEY,
0, KEY_QUERY_VALUE, &hkey) != ERROR_SUCCESS) hkey = 0;
sysMetrics[SM_CXVSCROLL] = SYSPARAMS_GetRegistryMetric( hkey, METRICS_SCROLLWIDTH_VALNAME, 16 );
sysMetrics[SM_CXVSCROLL] = SYSPARAMS_GetRegistryMetric( hkey, METRICS_SCROLLWIDTH_VALNAME, 16 , dpi);
sysMetrics[SM_CYHSCROLL] = sysMetrics[SM_CXVSCROLL];
/* The Win 2000 resource kit SAYS that this is governed by the ScrollHeight
* but on my computer that controls the CYV/CXH values. */
sysMetrics[SM_CYCAPTION] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_CAPTIONHEIGHT_VALNAME, 18)
sysMetrics[SM_CYCAPTION] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_CAPTIONHEIGHT_VALNAME, 18, dpi)
+ 1; /* for the separator? */
sysMetrics[SM_CYMENU] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_MENUHEIGHT_VALNAME, 18) + 1;
sysMetrics[SM_CYMENU] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_MENUHEIGHT_VALNAME, 18, dpi) + 1;
sysMetrics[SM_CXDLGFRAME] = 3;
sysMetrics[SM_CYDLGFRAME] = sysMetrics[SM_CXDLGFRAME];
@ -698,12 +700,12 @@ void SYSPARAMS_Init(void)
sysMetrics[SM_CYVTHUMB] = sysMetrics[SM_CXVSCROLL];
sysMetrics[SM_CXHTHUMB] = sysMetrics[SM_CYVTHUMB];
sysMetrics[SM_CXICON] = SYSPARAMS_GetRegistryMetric( hkey, METRICS_ICONSIZE_VALNAME, 32 );
sysMetrics[SM_CXICON] = SYSPARAMS_GetRegistryMetric( hkey, METRICS_ICONSIZE_VALNAME, 32 , dpi);
sysMetrics[SM_CYICON] = sysMetrics[SM_CXICON];
sysMetrics[SM_CYKANJIWINDOW] = 0;
sysMetrics[SM_MOUSEPRESENT] = 1;
sysMetrics[SM_CYVSCROLL] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_SCROLLHEIGHT_VALNAME, sysMetrics[SM_CXVSCROLL]);
sysMetrics[SM_CXHSCROLL] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_SCROLLHEIGHT_VALNAME, sysMetrics[SM_CYHSCROLL]);
sysMetrics[SM_CYVSCROLL] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_SCROLLHEIGHT_VALNAME, sysMetrics[SM_CXVSCROLL], dpi);
sysMetrics[SM_CXHSCROLL] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_SCROLLHEIGHT_VALNAME, sysMetrics[SM_CYHSCROLL], dpi);
sysMetrics[SM_DEBUG] = 0;
sysMetrics[SM_SWAPBUTTON] = 0;
@ -720,7 +722,7 @@ void SYSPARAMS_Init(void)
sysMetrics[SM_CXMIN] = 112;
sysMetrics[SM_CYMIN] = 27;
sysMetrics[SM_CXSIZE] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_CAPTIONWIDTH_VALNAME, sysMetrics[SM_CYCAPTION] - 1);
sysMetrics[SM_CXSIZE] = SYSPARAMS_GetRegistryMetric (hkey, METRICS_CAPTIONWIDTH_VALNAME, sysMetrics[SM_CYCAPTION] - 1, dpi);
sysMetrics[SM_CYSIZE] = sysMetrics[SM_CYCAPTION] - 1;
sysMetrics[SM_CXMINTRACK] = sysMetrics[SM_CXMIN];
sysMetrics[SM_CYMINTRACK] = sysMetrics[SM_CYMIN];
@ -756,10 +758,10 @@ void SYSPARAMS_Init(void)
sysMetrics[SM_CYMINSPACING] = 24;
sysMetrics[SM_CXSMICON] = 16;
sysMetrics[SM_CYSMICON] = 16;
sysMetrics[SM_CYSMCAPTION] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_SMCAPTIONHEIGHT_VALNAME, 15) + 1;
sysMetrics[SM_CXSMSIZE] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_SMCAPTIONWIDTH_VALNAME, 13);
sysMetrics[SM_CYSMCAPTION] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_SMCAPTIONHEIGHT_VALNAME, 15, dpi) + 1;
sysMetrics[SM_CXSMSIZE] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_SMCAPTIONWIDTH_VALNAME, 13, dpi);
sysMetrics[SM_CYSMSIZE] = sysMetrics[SM_CYSMCAPTION] - 1;
sysMetrics[SM_CXMENUSIZE] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_MENUWIDTH_VALNAME, sysMetrics[SM_CYMENU] - 1);
sysMetrics[SM_CXMENUSIZE] = SYSPARAMS_GetRegistryMetric(hkey, METRICS_MENUWIDTH_VALNAME, sysMetrics[SM_CYMENU] - 1, dpi);
sysMetrics[SM_CYMENUSIZE] = sysMetrics[SM_CYMENU] - 1;
/* FIXME: What do these mean? */
@ -972,9 +974,10 @@ BOOL WINAPI SystemParametersInfoW( UINT uiAction, UINT uiParam,
if (!spi_loaded[spi_idx])
{
WCHAR buf[10];
int dpi = GetDeviceCaps( display_dc, LOGPIXELSY);
if (SYSPARAMS_Load( SPI_SETBORDER_REGKEY, SPI_SETBORDER_VALNAME, buf, sizeof(buf) ))
border = SYSPARAMS_Twips2Pixels( atoiW(buf) );
border = SYSPARAMS_Twips2Pixels( atoiW(buf) , dpi);
spi_loaded[spi_idx] = TRUE;
sysMetrics[SM_CXFRAME] = border + sysMetrics[SM_CXDLGFRAME];
@ -1055,11 +1058,12 @@ BOOL WINAPI SystemParametersInfoW( UINT uiAction, UINT uiParam,
{
WCHAR buf[10];
int val;
int dpi = GetDeviceCaps( display_dc, LOGPIXELSY);
if (SYSPARAMS_Load( SPI_ICONHORIZONTALSPACING_REGKEY,
SPI_ICONHORIZONTALSPACING_VALNAME, buf, sizeof(buf) ))
{
val = SYSPARAMS_Twips2Pixels( atoiW(buf) );
val = SYSPARAMS_Twips2Pixels( atoiW(buf), dpi);
sysMetrics[SM_CXICONSPACING] = val;
}
spi_loaded[spi_idx] = TRUE;
@ -1250,11 +1254,12 @@ BOOL WINAPI SystemParametersInfoW( UINT uiAction, UINT uiParam,
{
WCHAR buf[10];
int val;
int dpi = GetDeviceCaps( display_dc, LOGPIXELSY);
if (SYSPARAMS_Load( SPI_ICONVERTICALSPACING_REGKEY,
SPI_ICONVERTICALSPACING_VALNAME, buf, sizeof(buf) ))
{
val = SYSPARAMS_Twips2Pixels( atoiW(buf) );
val = SYSPARAMS_Twips2Pixels( atoiW(buf), dpi);
sysMetrics[SM_CYICONSPACING] = val;
}
spi_loaded[spi_idx] = TRUE;