Question

I have a object in delphi that looks like:

  object DXDraw: TDXDraw
    Left = 0
    Top = 0
    Width = 640
    Height = 360
    AutoInitialize = True
    AutoSize = False
    Display.BitCount = 16
    Display.FixedBitCount = True
    Display.FixedRatio = True
    Display.FixedSize = False
    Options = [doFullScreen, doAllowReboot, doWaitVBlank, doHardware, 
        doRetainedMode, doDrawPrimitive, doSelectDriver, doTexture, 
        doRGB, doMono]
    SurfaceHeight = 360
    OnInitialize = DXDrawInitialize
    TabOrder = 1
    Visible = False
    OnClick = LbBackScreenClick
    OnDblClick = DXDrawDblClick
    OnDragDrop = FormDragDrop
    OnDragOver = FormDragOver
    OnKeyPress = EdFocusKeyPress
    OnMouseDown = LbBackScreenMouseDown
    OnMouseMove = LbBackScreenMouseMove
    OnMouseUp = LbBackScreenMouseUp
  end

I am trying to figure out how this would look like in ASM. In particular the Options. I found the enum table for it, but it just seems to be read over. I am interested in removing the doFullScreen flag.

Answer 1

There is no assembler code associated with .dfm form files. The properties in the .dfm file will be turned into a binary .dfm resource and then linked to the executable. At runtime the form persistence code loads the resource and processes its contents dynamically using RTTI.

Use a resource editor to see more. The form resources will appear under RCData | TMyForm for a form class named TMyForm. You can then extract the resource from the executable and save it to disk. Use the convert utility supplied with Delphi to convert it to text, passing -t to do that. Then edit the text .dfm. Then convert it back to binary using the -b option to convert. Then update the executable and you are done.

And @Remy points out a much simpler solution. Use a resource editor that supports Delphi .dfm files, for example XN Resource Editor. That wraps up and shields you from all the details above.