In the VB program, if you use the following statement to dynamically create a COMBO control
DIM WITHEVENTS CMBDROPLIST AS ComboBox ... Set CMBDroplist = controls.add ("vb.comboBox", "cMBDroplist"), the STYLE value of the Combo control is 1 (VBComBodropDown drop-down combo box, including a drop-down list and a text box . You can select it from the list or in the text box), if you want to change the value of Style 2 (VBComBodrop-DownList 2 drop-down list. This style only allows you to select from the drop-down list)
Through statement combo1.style = 2, because Style is read-only attribute. In order to break through this restriction, I use the SPY weapon to reconnaissance for the combo control of two different style values, and found two different places.
1. When the COMBO control style is 1-vbcomBodropDown, the Styles = & H54010242 of the Combo control window, while the STYLE value of the Combo control is 2-vbcomBodrop-Downlist, the Styles = & H54010243
2
I first try to change the Styles value of the Combo control window with the API function.
Call setWindowlong (Combo1.hwnd, GWL_Style, & H54010243)
See if there is any change in the COMBO control, and the result is expected.
I will try to kill the EDIT window in the Combo control with the API function, yeah ~~~, success
Here is my implementation code:
