func (app *DemoApp) CreateDeviceResources() {
if app.render_target.RawPtr() == 0 {
var rc = w32.GetClientRect(app.hwnd)
var hwndRenderTargetProperties = d2d.HwndRenderTargetProperties(app.hwnd)
hwndRenderTargetProperties.PixelSize = d2d.D2D1_SIZE_U{
uint32(rc.Right - rc.Left),
uint32(rc.Bottom - rc.Top),
}
app.render_target = app.factory.CreateHwndRenderTarget(
app.factory,
d2d.RenderTargetProperties(),
hwndRenderTargetProperties)
var LightSlateGray = d2d.D2D1_COLOR_F{0x77 / 255., 0x88 / 255., 0x99 / 255., 1}
var CornflowerBlue = d2d.D2D1_COLOR_F{0x64 / 255., 0x95 / 255., 0xED / 255., 1}
light_slate_gray_brush := app.render_target.CreateSolidColorBrush(
app.render_target,
&LightSlateGray,
nil)
defer light_slate_gray_brush.Release(light_slate_gray_brush)
light_slate_gray_brush.QueryInterface(
light_slate_gray_brush,
&(app.light_slate_gray_brush))
cornflower_blue := app.render_target.CreateSolidColorBrush(
app.render_target,
&CornflowerBlue,
nil)
defer cornflower_blue.Release(cornflower_blue)
cornflower_blue.QueryInterface(
cornflower_blue,
&(app.cornflower_blue))
}
}
func (this *ControlBase) Invalidate(erase bool) {
pRect := w32.GetClientRect(this.hwnd)
if this.isForm {
w32.InvalidateRect(this.hwnd, pRect, erase)
} else {
rc := ScreenToClientRect(this.hwnd, pRect)
w32.InvalidateRect(this.hwnd, rc.GetW32Rect(), erase)
}
}
func (this *ControlBase) ClientRect() *Rect {
rect := w32.GetClientRect(this.hwnd)
return ScreenToClientRect(this.hwnd, rect)
// return (*Rect)(rect)
}