func ScreenRect() (image.Rectangle, error) {
hDC := w32.GetDC(0)
if hDC == 0 {
return image.Rectangle{}, fmt.Errorf("Could not Get primary display err:%d\n", w32.GetLastError())
}
defer w32.ReleaseDC(0, hDC)
x := w32.GetDeviceCaps(hDC, w32.HORZRES)
y := w32.GetDeviceCaps(hDC, w32.VERTRES)
return image.Rect(0, 0, x, y), nil
}
func NewFont(family string, pointSize int, style byte) *Font {
if style > FontBold|FontItalic|FontUnderline|FontStrikeOut {
panic("Invalid font style")
}
//Retrive screen DPI
hDC := w32.GetDC(0)
defer w32.ReleaseDC(0, hDC)
screenDPIY := w32.GetDeviceCaps(hDC, w32.LOGPIXELSY)
font := Font{
family: family,
pointSize: pointSize,
style: style,
}
font.hfont = font.createForDPI(screenDPIY)
if font.hfont == 0 {
panic("CreateFontIndirect failed")
}
return &font
}