Registry

Firsty, you have to include the vcl\Registry.hpp header file for the compiler to reckonise the commands used in this program.
Click on the form once and double click the OnActivate event in the object inspector. Add the following code:
TRegistry& regKey = *new TRegisry();
bool keyGood = regKey.OpenKey("Software\\Test\\Test", false);
if (keyGood) {
int top = regKey.ReadInteger("Top");
int left = regKey.ReadInteger("Left");
int width = regKey.ReadInteger("Width");
int height = regKey.ReadInteger("Height");
SetBounds(left,top,width,height);
}
delete &regKey;
The above code checks for a registry key called Test. If it returns true(if it exists) then it begins reading the keys and finally sets the dimensions of the form by using the SetBounds() function. The following code must be placed in the OnClose event of the form:
TRegistry& regKey = *new TRegistry();
regKey.OpenKey("Software\\Test\\Test", true);
regKey.WriteInteger("Top", Top);
regKey.WriteInteger("Left", Left);
regKey.WriteInteger("Width", Width);
regKey.WriteInteger("Height", Height);
delete &regKey;
The above code opens a key called Test whether it exists or not and write the four dimensions of the form (width, height, top and left). The last line, delete &regKey;, simply exists the active key. Although it says delete, the key is not deleted just closed and left alone.