private void PositionButton(IntPtr hWnd, int right, int width)
{
hWnd.AssumeNonZero();
int id = hWnd.GetDlgCtrlID();
//hWnd.BringWindowToTop();
InteropUtil.WINDOWPLACEMENT buttonLoc = hWnd.GetWindowPlacement();
buttonLoc.Right = right;
buttonLoc.Left = buttonLoc.Right - width;
hWnd.SetWindowPlacement(ref buttonLoc);
hWnd.InvalidateRect(IntPtr.Zero, true);
}
private void ResizeCustomControl(IntPtr hWnd)
{
if (hWnd == m_hWnd)
{
IntPtr hSelectButton = hWnd.AssumeNonZero().GetDlgItem(InteropUtil.ID_SELECT).AssumeNonZero();
IntPtr hOkButton = hWnd.AssumeNonZero().GetDlgItem(InteropUtil.ID_CUSTOM_CANCEL).AssumeNonZero();
IntPtr hParent = hWnd.GetParent().AssumeNonZero();
IntPtr fileName = hParent.GetDlgItem(InteropUtil.ID_FileNameCombo).AssumeNonZero();
/*var right = fileName.GetWindowPlacement().Right;
* var top = hSelectButton.GetWindowPlacement().Top;*/
InteropUtil.RECT rect = new InteropUtil.RECT();
InteropUtil.WINDOWPLACEMENT selectRect = hSelectButton.GetWindowPlacement();
rect.top = selectRect.Top;
rect.bottom = selectRect.Bottom;
rect.right = fileName.GetWindowPlacement().Right;
rect.left = rect.right - (m_cancelWidth + m_buttonGap + m_selectWidth);
ResizeCustomControl(hWnd, rect, hOkButton, hSelectButton);
}
}
private void ResizeCustomControl(IntPtr hWnd, InteropUtil.RECT rect, params IntPtr[] buttons)
{
DialogBrowsingUtilities.Assume(buttons != null && buttons.Length > 0);
hWnd.AssumeNonZero();
InteropUtil.WINDOWPLACEMENT wndLoc = hWnd.GetWindowPlacement();
wndLoc.Right = rect.right;
hWnd.SetWindowPlacement(ref wndLoc);
foreach (IntPtr hBtn in buttons)
{
m_calcPosMap[hBtn.GetDlgCtrlID()](this, rect.right, out int btnRight, out int btnWidth);
PositionButton(hBtn, btnRight, btnWidth);
}
IntPtr hRgn = InteropUtil.CreateRectRgnIndirect(ref rect);
try
{
if (hWnd.SetWindowRgn(hRgn, true) == 0)
{
//setting the region failed, so we need to delete the region we created above.
hRgn.DeleteObject();
}
}
catch
{
if (hRgn != IntPtr.Zero)
{
hRgn.DeleteObject();
}
}
}
private void InitDialog(IntPtr hWnd)
{
m_hWnd = hWnd;
IntPtr hParent = hWnd.GetParent().AssumeNonZero();
hParent.SetWindowSubclass(m_openFileSubClassDelegate, 0, 0);
//disable and hide the filter combo box
IntPtr hFilterCombo = hParent.GetDlgItem(InteropUtil.ID_FilterCombo).AssumeNonZero();
hFilterCombo.EnableWindow(false);
hParent.SendMessage(InteropUtil.CDM_HIDECONTROL, InteropUtil.ID_FilterCombo, 0);
hParent.SendMessage(InteropUtil.CDM_HIDECONTROL, InteropUtil.ID_FilterLabel, 0);
//update the file name label
IntPtr hFileNameLabel = hParent.GetDlgItem(InteropUtil.ID_FileNameLabel).AssumeNonZero();
if (FileNameLabel != "")
{
hFileNameLabel.SendMessageString(InteropUtil.WM_SETTEXT, 0, FileNameLabel);
}
//find the button controls in the parent
IntPtr hOkButton = hParent.GetDlgItem(InteropUtil.IDOK).AssumeNonZero();
IntPtr hCancelButton = hParent.GetDlgItem(InteropUtil.IDCANCEL).AssumeNonZero();
//We don't want the accelerator keys for the ok and cancel buttons to work, because
//they are not shown on the dialog. However, we still want the buttons enabled
//so that "esc" and "enter" have the behavior they used to. So, we just
//clear out their text instead.
hOkButton.SetWindowTextW("");
hCancelButton.SetWindowTextW("");
//find our button controls
IntPtr hSelectButton = hWnd.GetDlgItem(InteropUtil.ID_SELECT).AssumeNonZero();
IntPtr hCustomCancelButton = hWnd.GetDlgItem(InteropUtil.ID_CUSTOM_CANCEL).AssumeNonZero();
//copy the font from the parent's buttons
hSelectButton.LoadFontFrom(hOkButton);
hCustomCancelButton.LoadFontFrom(hCancelButton);
InteropUtil.WINDOWPLACEMENT cancelLoc = hCancelButton.GetWindowPlacement();
//hide the ok and cancel buttons
hParent.SendMessage(InteropUtil.CDM_HIDECONTROL, InteropUtil.IDOK, 0);
hParent.SendMessage(InteropUtil.CDM_HIDECONTROL, InteropUtil.IDCANCEL, 0);
//expand the file name combo to take up the space left by the OK and cancel buttons.
IntPtr hFileName = hParent.GetDlgItem(InteropUtil.ID_FileNameCombo).AssumeNonZero();
InteropUtil.WINDOWPLACEMENT fileNameLoc = hFileName.GetWindowPlacement();
fileNameLoc.Right = hOkButton.GetWindowPlacement().Right;
hFileName.SetWindowPlacement(ref fileNameLoc);
InteropUtil.WINDOWPLACEMENT parentLoc = hParent.GetWindowPlacement();
//subtract the height of the missing cancel button
parentLoc.Bottom -= (cancelLoc.Bottom - cancelLoc.Top);
hParent.SetWindowPlacement(ref parentLoc);
//move the select and custom cancel buttons to the right hand side of the window:
InteropUtil.WINDOWPLACEMENT selectLoc = hSelectButton.GetWindowPlacement();
InteropUtil.WINDOWPLACEMENT customCancelLoc = hCustomCancelButton.GetWindowPlacement();
m_cancelWidth = customCancelLoc.Right - customCancelLoc.Left;
m_selectWidth = selectLoc.Right - selectLoc.Left;
m_buttonGap = customCancelLoc.Left - selectLoc.Right;
InteropUtil.WINDOWPLACEMENT ctrlLoc = hWnd.GetWindowPlacement();
ctrlLoc.Right = fileNameLoc.Right;
//ResizeCustomControl(hWnd, fileNameLoc.Right, hCustomCancelButton, hSelectButton);
ResizeCustomControl(hWnd);
}
