WM_MDITILE
fTile = wParam; /* tiling flag */The WM_MDITILE message is sent to a multiple document interface (MDI) client window to arrange all its child windows in a tiled format.
fTile
Value of wParam. Specifies a tiling flag. This parameter can be one of the following flags:
| Value | Meaning |
| MDITILE_HORIZONTAL | Tiles MDI child windows so that they are wide rather than tall. |
| MDITILE_SKIPDISABLED | Prevents disabled MDI child windows from being tiled. |
| MDITILE_VERTICAL | Tiles MDI child windows so that they are tall rather than wide. |
An application should return zero if it processes this message.