Windows sendmessage constants

However, the sending thread will process incoming nonqueued messages while waiting for its message to be processed. For more information on nonqueued messages, see Nonqueued Messages.

This functionality is not guaranteed to work for other types of applications. For an example, see Displaying Keyboard Input. Messages and Message Queues. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Alex R. This might be true of standard Delphi controls, but the Developer Express TcxGrid is a long way from being a standard Delphi control.

Unfortunately you need source codes or use SetWindowsHookEx. Yes, TcxGrid is not a standard control in any way. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually.

Linked 1. Related 1. Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled. For a C enum see WindowsMessages. Select "Edit This Page" on the right hand toolbar and edit it! Create page. Type a page name and press Enter. You'll jump to the page if it exists, or you can create it if it doesn't. To create a page in a module other than Constants, prefix the name with the module name and a period. Also is a list of constants for C and VB. C and VB enums of many of the Windows Messages.

Creates a window with an extended window style. The AccessibleObjectFromPoint function retrieves the address of the IAccessible interface pointer for the object at a specified point on the screen.

The AccessibleObjectFromEvent function retrieves the address of the IAccessible interface for the object that generated the event.

The event is the one that the client's event hook function is currently processing. Defines a system-wide hot key. Destroys the specified window.

Show Recent Changes. Subscribe RSS. Suggested Reading. Download Visual Studio Add-In. Create page Type a page name and press Enter. WM Constants. This message is sent first to the window procedure of the top-level window being deactivated; it is then sent to the window procedure of the top-level window being activated. The message is sent to the application whose window is being activated and to the application whose window is being deactivated.

The message is posted with a NULL window handle. For example, the system sends this message to the active window when a dialog box or message box is displayed. Certain functions also send this message explicitly to the specified window regardless of whether it is the active window.

For example, the EnableWindow function sends this message when disabling the specified window. This indicates that system memory is low. The message is sent before the function returns. The window procedure of the new window receives this message after the window is created, but before the window becomes visible.

The parent window can change the button's text and background colors. However, only owner-drawn buttons respond to the parent window processing this message. By responding to this message, the dialog box can set its text and background colors using the specified display device context handle. By responding to this message, the parent window can use the specified device context handle to set the text and background colors of the edit control.

Sent to the parent window of a list box before the system draws the list box. By responding to this message, the parent window can set the text and background colors of the list box by using the specified display device context handle.

By responding to this message, the owner window can set the text and background colors of the message box by using the given display device context handle.

By responding to this message, the parent window can use the display context handle to set the background color of the scroll bar control.

By responding to this message, the parent window can use the specified device context handle to set the text and background colors of the static control. A dead key is a key that generates a character, such as the umlaut double-dot , that is combined with another character to form a composite character. It is sent to the window procedure of the window being destroyed after the window is removed from the screen.

This message is sent first to the window being destroyed and then to the child windows if any as they are destroyed. During the processing of the message, it can be assumed that all child windows still exist. Notifies an application of a change to the hardware configuration of a device or the computer.

This enables a clipboard viewer window to display the new content of the clipboard. Sent when the user drops a file on the window of an application that has registered itself as a recipient of dropped files.