An application sends a ZGM_DIMGRID message to dimension or redimension an existing ZeeGrid. The ZGM_DIMGRID message sets the total number of columns, number of visible columns, and the number of fixed columns in the ZeeGrid.
ZGM_DIMGRID wParam = (WPARAM) Columns; //grid total columns and visible columns lParam = (LPARAM) fixed_columns; //grid fixed columns
This message does not return a value.
If an existing and populated ZeeGrid is sent the ZGM_DIMGRID message, all existing data and allocated memory for that ZeeGrid is deleted and released back to the heap before the ZeeGrid is redimensioned.
After sending the ZGM_DIMGRID message to your ZeeGrid, it will be formatted with the number of columns specified and 0 rows.
ZeeGrid columns are defined in the ZGM_DIMGRID message and cannot be modified without issuing another ZGM_DIMGRID. Note that rows are not dimensioned. Rows are dynamically allocated as needed.
// //dimension a ZeeGrid with 8 columns and no fixed columns // SendMessage(hgrid,ZGM_DIMGRID,8,0); // //dimension a ZeeGrid with 10 columns, only 8 of which //are visible and 2 fixed columns // SendMessage(hgrid,ZGM_DIMGRID,MAKEWPARAM(10,8),2);