Beispiel #1
0
func MustRegisterWindowClassWithWndProcPtr(className string, wndProcPtr uintptr) {
	if registeredWindowClasses[className] {
		panic("window class already registered")
	}

	hInst := win.GetModuleHandle(nil)
	if hInst == 0 {
		panic("GetModuleHandle")
	}

	hIcon := win.LoadIcon(0, (*uint16)(unsafe.Pointer(uintptr(win.IDI_APPLICATION))))
	if hIcon == 0 {
		panic("LoadIcon")
	}

	hCursor := win.LoadCursor(0, (*uint16)(unsafe.Pointer(uintptr(win.IDC_ARROW))))
	if hCursor == 0 {
		panic("LoadCursor")
	}

	var wc win.WNDCLASSEX
	wc.CbSize = uint32(unsafe.Sizeof(wc))
	wc.LpfnWndProc = wndProcPtr
	wc.HInstance = hInst
	wc.HIcon = hIcon
	wc.HCursor = hCursor
	wc.HbrBackground = win.COLOR_BTNFACE + 1
	wc.LpszClassName = syscall.StringToUTF16Ptr(className)

	if atom := win.RegisterClassEx(&wc); atom == 0 {
		panic("RegisterClassEx")
	}

	registeredWindowClasses[className] = true
}
Beispiel #2
0
// NewIconFromResource returns a new Icon, using the specified icon resource.
func NewIconFromResource(resName string) (ic *Icon, err error) {
	hInst := win.GetModuleHandle(nil)
	if hInst == 0 {
		err = lastError("GetModuleHandle")
		return
	}
	if hIcon := win.LoadIcon(hInst, syscall.StringToUTF16Ptr(resName)); hIcon == 0 {
		err = lastError("LoadIcon")
	} else {
		ic = &Icon{hIcon: hIcon}
	}
	return
}
Beispiel #3
0
func NewIconFromResourceId(id uintptr) (*Icon, error) {
	hInst := win.GetModuleHandle(nil)
	if hInst == 0 {
		return nil, lastError("GetModuleHandle")
	}

	hIcon := win.LoadIcon(hInst, win.MAKEINTRESOURCE(id))
	if hIcon == 0 {
		return nil, lastError("LoadIcon")
	}

	return &Icon{hIcon: hIcon}, nil
}
Beispiel #4
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func IconWinLogo() *Icon {
	return &Icon{win.LoadIcon(0, win.MAKEINTRESOURCE(win.IDI_WINLOGO)), true}
}
Beispiel #5
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func IconShield() *Icon {
	return &Icon{win.LoadIcon(0, win.MAKEINTRESOURCE(win.IDI_SHIELD)), true}
}
Beispiel #6
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func IconInformation() *Icon {
	return &Icon{win.LoadIcon(0, win.MAKEINTRESOURCE(win.IDI_INFORMATION)), true}
}
Beispiel #7
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func IconWarning() *Icon {
	return &Icon{win.LoadIcon(0, win.MAKEINTRESOURCE(win.IDI_WARNING)), true}
}
Beispiel #8
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func IconQuestion() *Icon {
	return &Icon{win.LoadIcon(0, win.MAKEINTRESOURCE(win.IDI_QUESTION)), true}
}
Beispiel #9
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func IconError() *Icon {
	return &Icon{win.LoadIcon(0, win.MAKEINTRESOURCE(win.IDI_ERROR)), true}
}
Beispiel #10
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func IconApplication() *Icon {
	return &Icon{win.LoadIcon(0, win.MAKEINTRESOURCE(win.IDI_APPLICATION)), true}
}