private void InitDialog(IntPtr hWnd)
{
m_hWnd = hWnd;
var hParent = hWnd.GetParent().AssumeNonZero();
hParent.SetWindowSubclass(m_openFileSubClassDelegate, 0, 0);
//disable and hide the filter combo box
var 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
var hFileNameLabel = hParent.GetDlgItem(InteropUtil.ID_FileNameLabel).AssumeNonZero();
if (FileNameLabel != "")
{
hFileNameLabel.SendMessageString(InteropUtil.WM_SETTEXT, 0, FileNameLabel);
}
//find the button controls in the parent
var hOkButton = hParent.GetDlgItem(InteropUtil.IDOK).AssumeNonZero();
var 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
var hSelectButton = hWnd.GetDlgItem(InteropUtil.ID_SELECT).AssumeNonZero();
var hCustomCancelButton = hWnd.GetDlgItem(InteropUtil.ID_CUSTOM_CANCEL).AssumeNonZero();
//copy the font from the parent's buttons
hSelectButton.LoadFontFrom(hOkButton);
hCustomCancelButton.LoadFontFrom(hCancelButton);
var 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.
var hFileName = hParent.GetDlgItem(InteropUtil.ID_FileNameCombo).AssumeNonZero();
var fileNameLoc = hFileName.GetWindowPlacement();
fileNameLoc.Right = hOkButton.GetWindowPlacement().Right;
hFileName.SetWindowPlacement(ref fileNameLoc);
var 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:
var selectLoc = hSelectButton.GetWindowPlacement();
var customCancelLoc = hCustomCancelButton.GetWindowPlacement();
m_cancelWidth = customCancelLoc.Right - customCancelLoc.Left;
m_selectWidth = selectLoc.Right - selectLoc.Left;
m_buttonGap = customCancelLoc.Left - selectLoc.Right;
var ctrlLoc = hWnd.GetWindowPlacement();
ctrlLoc.Right = fileNameLoc.Right;
//ResizeCustomControl(hWnd, fileNameLoc.Right, hCustomCancelButton, hSelectButton);
ResizeCustomControl(hWnd);
}
