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Using MoveWindow for a control in a dialog

Posted on 2003-02-21
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Last Modified: 2010-10-05
I've tried to show a rectangle over the selected control in a dialog. But, when I try to move the rectangle using the movewindow() function, the rectangle just disappears. My guess is that I'm not getting the coordinates of the selected control with respect to the dialog containing that control. How can I do it? The rectangle is simply a static control, and I want to show it round the selected text control.
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Question by:motorway
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scerveza earned 400 total points
ID: 7997959
[QUOTE]The rectangle is simply a static control, and I want to show it round the selected text control.[/QUOTE]

A static control is a type of text control and showing
it around a selected text control will hide that text
control. Are you sure you want to do that?

Anyways, here's how you move controls around in a dialog
box (using standard windows programming).

LRESULT CALLCACK WndProc(HWND handle, UINT msg, WPARAM wparam, LPARAM lparam)
{
 //...

 case(WM_INITDIALOG) :
 {
  // get rect of dialog's client area
  RECT clientRect;
  GetClientRect(handle, &clientRect);

  // get static control (will vary)
  // and get it's rect
  HWND static_control = GetDlgItem(handle, IDRES_STATIC);
  RECT staticRect;
  GetWindowRect(static_control, &staticRect);
  int dx = staticRect.right - staticRect.left;
  int dy = staticRect.bottom - staticRect.top;

  // move static control around
  MoveWindow(static_control, 15, 15, dx, dy, TRUE);

  return TRUE;
 }

 // ...
}
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Expert Comment

by:scerveza
ID: 7997969
sorry that window procedure should be declared
BOOL CALLBACK DlgProc(HWND, UINT, WPARAM, LPARAM) lol.
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