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app/internal/window: [windows] add icon support

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That change adds the icon to the "window navbar".

Signed-off-by: Inkeliz <inkeliz@inkeliz.com>
This commit is contained in:
Inkeliz
2020-12-11 17:27:53 +00:00
committed by Elias Naur
parent bd7bb4d5d2
commit 0dfb04eb2d
2 changed files with 27 additions and 0 deletions
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app/internal/windows/windows.go
+22
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@@ -193,6 +193,19 @@ const (
GHND = 0x0042
CF_UNICODETEXT = 13
IMAGE_BITMAP = 0
IMAGE_ICON = 1
IMAGE_CURSOR = 2
LR_CREATEDIBSECTION = 0x00002000
LR_DEFAULTCOLOR = 0x00000000
LR_DEFAULTSIZE = 0x00000040
LR_LOADFROMFILE = 0x00000010
LR_LOADMAP3DCOLORS = 0x00001000
LR_LOADTRANSPARENT = 0x00000020
LR_MONOCHROME = 0x00000001
LR_SHARED = 0x00008000
LR_VGACOLOR = 0x00000080
)
var (
@@ -221,6 +234,7 @@ var (
_GetMessageTime = user32.NewProc("GetMessageTime")
_KillTimer = user32.NewProc("KillTimer")
_LoadCursor = user32.NewProc("LoadCursorW")
_LoadImage = user32.NewProc("LoadImageW")
_MonitorFromPoint = user32.NewProc("MonitorFromPoint")
_MsgWaitForMultipleObjectsEx = user32.NewProc("MsgWaitForMultipleObjectsEx")
_OpenClipboard = user32.NewProc("OpenClipboard")
@@ -438,6 +452,14 @@ func LoadCursor(curID uint16) (syscall.Handle, error) {
return syscall.Handle(h), nil
}
func LoadImage(hInst syscall.Handle, res uint32, typ uint32, cx, cy int, fuload uint32) (syscall.Handle, error) {
h, _, err := _LoadImage.Call(uintptr(hInst), uintptr(res), uintptr(typ), uintptr(cx), uintptr(cy), uintptr(fuload))
if h == 0 {
return 0, fmt.Errorf("LoadImageW failed: %v", err)
}
return syscall.Handle(h), nil
}
func monitorFromPoint(pt Point, flags uint32) syscall.Handle {
r, _, _ := _MonitorFromPoint.Call(uintptr(pt.X), uintptr(pt.Y), uintptr(flags))
return syscall.Handle(r)