SendMessage function in RoutineBot

The SendMessage function sends the specified message to a window or windows. It calls the window procedure for the specified window and does not return until the window procedure has processed the message.
Syntax

SendMessage( Handles:String, Message:String, WParam:Integer [optional], LParam:Integer [optional], Count:Integer [optional] )

Parameters

Handles:String

String that contains handles whose window procedure will receive the message. You can obtain these handles via function FindWindows.

Message:String

Specifies the message to be sent. If message is a number then this function is equivalent to WinAPI function SendMessage. Otherwise, can be one of predefined string constant

“Activate” – function activates windows with handles represented in parameter handles
“Close” – function closes windows with handles represented in parameter handles
“Maximize” – function maximizes windows with handles represented in parameter handles
“Minimize” – function minimizes windows with handles represented in parameter handles
“Normalize” – function normalizes windows with handles represented in parameter handles

WParam:Integer [optional]

Specifies additional message-specific information.

LParam:Integer [optional]

Specifies additional message-specific information.

Count:Integer [optional]

Specifies how many handles from parameter handle will be used in function. If this parameter is -1 then all handles will be used, otherwise function uses only first count handles form parameter handles.

Example

This Example will run Notepad.exe, type “abc”, save file and close Notepad.

SetWarningsOn('ON');
FilePath := 'c:\temp.txt';
FExist := FileExists(FilePath);
Execute('c:\windows\notepad.exe',FilePath);
//Running notepad
handles := FindWindows('','notepad');
//searching it handles
if ListSize(handles) > 0 then // if more than 1 window found
begin
h := ListItem(Handles,0);
SendMessage(h,'Activate'); //activating window
if not (FExist = 1) then
begin //if not exist file 'c:\temp.txt'
//we must enter button on keyboard
EnterKeys('{ENTER}');
handles := FindWindows('','notepad');
h := ListItem(Handles,0);
SendMessage(h,'Activate');
//searching and activating new notepad windows
end;
//maximizes window
SendMessage(h,'Maximize');
//typing text "abc"
EnterKeys('abc');
//typing Ctrl+S
EnterKeys('^s');
Wait(1000);
//Closing window. 16 is predefined constant
//for message WM_CLOSE
SendMessage(h,16);
end;
Download example SendMessage.