FiveTech Software tech support forums

Hi,

The resolution of my monitor is 1920 x 1080. However, the ScrResolution() function returns
{ 1536, 864 }. Why ?

Natter

Try it this way ...

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nSCR1 := GetSysMetrics(0)
nSCR2 := GetSysMetrics(1)
 

This will give you the horizontal and vertical resolution ...

Rick Lipkin

I tried it. Getsystemmetrics returns the same values. Mysticism

So what ?

Hi Natter,

Because of Display Setup (Scale and Layout is 125%)

Natter wrote:Hi,

The resolution of my monitor is 1920 x 1080. However, the ScrResolution() function returns
{ 1536, 864 }. Why ?

Yes, dutch, you're right. Thanks !

Can I get this scale from FWH ?

I believe that Uwe found a solution in this topic ....

http://forums.fivetechsupport.com/viewtopic.php?f=3&t=34845&hilit=scale+monitor&sid=581ff73d708640259f7dd5d859b26a12

Is there a function that can read the scaling of your desktop?

Thanks.

It is not possible to get DPI yet. It might be worth trying in the registry

hi,

there are different Way to get Scale-Factor.

for single Monitor you can use "real" / "virtual" Desktop Size to get Scale-Factor

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#define HORZRES              0x0008   // (  8) Horizontal width in pixels
#define VERTRES              0x000A   // ( 10) Vertical width in pixels
#define LOGPIXELSX           0x0058   // ( 88) Logical pixels/inch in X
#define LOGPIXELSY           0x005A   // ( 90) Logical pixels/inch in Y
#define DESKTOPVERTRES       0x0075   // (117) Vertical height  of entire desktop in pixels
#define DESKTOPHORZRES       0x0076   // (118) Horizontal width of entire desktop in pixels

Function GetDeskSize(nHDC,lVirtual)
LOCAL nWidth,nHeight
   nWidth  := HMG_CallDLL('GDI32.dll', DLL_OSAPI, 'GetDeviceCaps', nHDC, iif(lVirtual, HORZRES, DESKTOPHORZRES))
   nHeight := HMG_CallDLL('GDI32.dll', DLL_OSAPI, 'GetDeviceCaps', nHDC, iif(lVirtual, VERTRES, DESKTOPVERTRES))
RETURN{nWidth,nHeight}
 

---

for multi-Monitor you need

MonitorFromWindow https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-monitorfromwindow
GetScaleFactorForMonitor https://docs.microsoft.com/en-us/windows/win32/api/shellscalingapi/nf-shellscalingapi-getscalefactorformonitor
DEVICE_SCALE_FACTOR https://docs.microsoft.com/en-us/windows/win32/api/shtypes/ne-shtypes-device_scale_factor

GetScaleFactorForDevice is IMHO outdate
https://docs.microsoft.com/en-us/windows/win32/api/shellscalingapi/nf-shellscalingapi-getscalefactorfordevice

Jimmy, great! GetDeviceCaps(DC, 117/118) works correctly

Hi Jimmy, how do I do this in FiveWin? I don't use HMG.

Hola Jimmy, ¿cómo hago esto en FiveWin? No uso HMG.

Regards, saludos.

hi karinha,

karinha wrote:how do I do this in FiveWin? I don't use HMG.

FiveWin have in c:\fwh\source\winapi\device.c

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HB_FUNC( GETDEVICECAPS )     //  ()    HDC, int iIndex

so as Natter wrote use

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#define DESKTOPVERTRES       0x0075   // (117) Vertical height  of entire desktop in pixels
#define DESKTOPHORZRES       0x0076   // (118) Horizontal width of entire desktop in pixels

   Vertical   := GetDeviceCaps(DC, 0x0075)
   Horizontal := GetDeviceCaps(DC, 0x0076)

Hola Jimmy, ¿puedes hacer un ejemplo completo y funcional? Necesito cambiar la RESOLUCIÓN DEL VIDEO a 1280x768 en tiempo real y luego volver a la RESOLUCIÓN DEL CLIENTE como estaba antes. ¿Es posible o no?

Hi Jimmy, can you make a complete and working example? I need to change the VIDEO RESOLUTION to 1280x768 in realtime, and then go back to CLIENT RESOLUTION as it was before. Is it possible or not?

WINDOW 7 and WINDOWS 10 please.

Gracias, thanks.

Origen:

http://forums.fivetechsupport.com/viewtopic.php?f=6&t=42143&sid=f7177597dbec68af574f19f84a5e1875

Regards, saludos.