This message is sent by an application to an edit control or combo box to copy the current content of the clipboard to the edit control at the current caret position. Data is inserted only if the clipboard contains data in CF_UNICODETEXT format.
WM_PASTE wParam = 0; lParam = 0;
WM_COPY
This message is sent by an application to an edit control or combo box to copy the current selection to the clipboard in CF_UNICODETEXT format.