Dynamically change the width of the ComboBox drop-down box

In C++builder, there are the contents of the drop box is longer, the standard length is not complete at all, you can call the PostMessage () method to implement

::P ostmessage (comb->handle,cb_setdroppedwidth,newwidth,0);
Comb is a ComboBox pointer, Newwidth is the new length of the drop-down box

This method will fail under the following conditions
1. Dynamically changing the BorderStyle property of a form
2. The Parent property of the form is changed dynamically

From

Http://showmealone.blog.sohu.com/76080725.html

Dynamically change the width of the ComboBox drop-down box