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ShowWindowAsync function

Applies to: desktop apps only

Sets the show state of a window created by a different thread.

Syntax

Copy

BOOL WINAPI ShowWindowAsync(
  __in  HWND hWnd,
  __in  int nCmdShow
);

Parameters

hWnd [in]

Type: HWND

A handle to the window.

nCmdShow [in]

Type: int

Controls how the window is to be shown. For a list of possible values, see the description of the ShowWindow function.

Return value

Type:

Type: BOOL

If the window was previously visible, the return value is nonzero.

If the window was previously hidden, the return value is zero.

Remarks

This function posts a show-window event to the message queue of the given window. An application can use this function to avoid becoming nonresponsive while waiting for a nonresponsive application to finish processing a show-window event.

Requirements