Based on dialog box, hide dialog box in the taskbar

Many of the Internet are hidden in the document view launch dialog. Did not find the dialog-based program, hide the dialog box in the taskbar

deal with

WM_SHOWINDOW:

Postmessage (hwnddlg, hidedlg, 0, 0);

Hidedlg:

ShowWindow (hwnddlg, sw_hide);