// Bounds returns the outer bounding box Rectangle of the *WindowBase, including
// decorations.
//
// The coordinates are relative to the screen.
func (wb *WindowBase) Bounds() Rectangle {
var r win.RECT
if !win.GetWindowRect(wb.hWnd, &r) {
lastError("GetWindowRect")
return Rectangle{}
}
return Rectangle{
int(r.Left),
int(r.Top),
int(r.Right - r.Left),
int(r.Bottom - r.Top),
}
}
func (tw *TabWidget) resizePages() {
var r win.RECT
if !win.GetWindowRect(tw.hWndTab, &r) {
lastError("GetWindowRect")
return
}
p := win.POINT{
r.Left,
r.Top,
}
if !win.ScreenToClient(tw.hWnd, &p) {
newError("ScreenToClient failed")
return
}
r = win.RECT{
p.X,
p.Y,
r.Right - r.Left + p.X,
r.Bottom - r.Top + p.Y,
}
win.SendMessage(tw.hWndTab, win.TCM_ADJUSTRECT, 0, uintptr(unsafe.Pointer(&r)))
for _, page := range tw.pages.items {
if err := page.SetBounds(
Rectangle{
int(r.Left - 2),
int(r.Top),
int(r.Right - r.Left + 2),
int(r.Bottom - r.Top),
}); err != nil {
return
}
}
}
func hBitmapFromWindow(window Window) (win.HBITMAP, error) {
hdcMem := win.CreateCompatibleDC(0)
if hdcMem == 0 {
return 0, newError("CreateCompatibleDC failed")
}
defer win.DeleteDC(hdcMem)
var r win.RECT
if !win.GetWindowRect(window.Handle(), &r) {
return 0, newError("GetWindowRect failed")
}
hdc := win.GetDC(window.Handle())
width, height := r.Right-r.Left, r.Bottom-r.Top
hBmp := win.CreateCompatibleBitmap(hdc, width, height)
win.ReleaseDC(window.Handle(), hdc)
hOld := win.SelectObject(hdcMem, win.HGDIOBJ(hBmp))
flags := win.PRF_CHILDREN | win.PRF_CLIENT | win.PRF_ERASEBKGND | win.PRF_NONCLIENT | win.PRF_OWNED
window.SendMessage(win.WM_PRINT, uintptr(hdcMem), uintptr(flags))
win.SelectObject(hdcMem, hOld)
return hBmp, nil
}