Hi Jim,
I tried this and the LOGPIXELSX and LOGPIXELSY did not change on changing the font
settings. The values remained at 96. Anyways, here's how I retrieved them:
1. call the GetDesktopWindow from User32.dll:
unsigned long GetDesktopWindow(void);
2. call GetWindowDC from User32.dll, passing the value returned from GetDesktopWindow
above:
unsigned long GetWindowDC(unsigned long hwnd);
3a. call GetDeviceCaps from gdi32.dll, passing the value returned from GetWindowDC
above, and 88 as the value for LOGPIXELSX:
unsigned long GetDeviceCaps(unsigned long hdc, long LOGPIXELSX);
3b. call GetDeviceCaps from gdi32.dll, passing the value returned from GetWindowDC
above, and 90 as the value for LOGPIXELSY:
unsigned long GetDeviceCaps(unsigned long hdc, long LOGPIXELSY);
I also tried calling the GetTextMetrics function, and its tmHeight element (which is
supposed to change with font setting) doesn't change either. I always get a value of
16 for it. Call this from gdi32.dll, passing the value returned from GetWindowDC
above, and a pointer to Int32:
unsigned long GetTextMetricsA(unsigned long hdc, long *tmHeight);
Not sure why the values don't reflect the change in settings. Hope you can dig more
into this.
Regards,
Khalid Ansari
-------------------------------------------
"Jim West" <[EMAIL PROTECTED]>
Sent by: <[EMAIL PROTECTED]>
03/26/2004 09:07 AM
To: <[EMAIL PROTECTED]>
cc:
Subject: Large Fonts
To All:
Can anyone offer any suggestions (or have a VI) to programatically
retrieve the 'Large Fonts' vs 'Small Fonts' setting in Windows?
I stumbled around the Microsoft knowledge base for a while but only
uncovered the 'GetDeviceCaps' API. The API seems to have a different
prototype on my machine versus what MS describes. MS refers to
LOGPIXELSX and LOGPIXELSY but I can't seem to figure out how to retrieve
them from within LV.
Any ideas?
Jim West
Summitek Instruments
