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add get primary display DPI scale factor fix #129, #135

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This commit is contained in:
vcaesar 2018-07-09 22:52:55 +08:00
parent 22fbae18dd
commit ec82b0fd15
3 changed files with 33 additions and 2 deletions
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10
robotgo.go
View File

@ -1293,6 +1293,16 @@ ____ __ ____ __ .__ __. _______ ______ ____ __ ____
*/ */
// ScaleX get primary display horizontal DPI scale factor
func ScaleX() int {
return int(C.scalex())
}
// ScaleY get primary display vertical DPI scale factor
func ScaleY() int {
return int(C.scaley())
}
// ShowAlert show a alert window // ShowAlert show a alert window
func ShowAlert(title, msg string, args ...string) int { func ShowAlert(title, msg string, args ...string) int {
var ( var (

21
window/goWindow.h
View File

@ -18,6 +18,27 @@ int show_alert(const char *title, const char *msg,
return alert; return alert;
} }
intptr scalex(){
#if defined(IS_WINDOWS)
// Get desktop dc
HDC desktopDc = GetDC(NULL);
// Get native resolution
intptr horizontalDPI = GetDeviceCaps(desktopDc, LOGPIXELSX);
// intptr verticalDPI = GetDeviceCaps(desktopDc, LOGPIXELSY);
return horizontalDPI;
#endif
}
intptr scaley(){
#if defined(IS_WINDOWS)
// Get desktop dc
HDC desktopDc = GetDC(NULL);
// Get native resolution
intptr verticalDPI = GetDeviceCaps(desktopDc, LOGPIXELSY);
return verticalDPI;
#endif
}
bool is_valid(){ bool is_valid(){
bool abool = IsValid(); bool abool = IsValid();
return abool; return abool;