Forum > numerous TBitmap errors

12-02-2019, 01:36 PM:

My desktop app works OK, but when I tried to move the code to intraweb I got many errors, "unknown identifiers"

"canvas has no brush class"

starting from

napis.PixelFormat:= pf24bit; "property is read only"

intraweb 15.1.5 delphi xe7

uses

FMX.graphics;

var

napis:= TBitmap;

napis:= TBitmap.Create;

napis.PixelFormat:= pf24bit;

napis.Canvas.Brush.Color := RGB(50,50,50);

napis.Canvas.Brush.Style := bsSolid;

napis.Width:= zdjecie.Width;

napis.Height:= zdjecie.Height;

napis.Canvas.FillRect(Rect(0,0,napis.width-1,napis.height-1));

napis.Canvas.Font.Quality:= fqAntialiased;

napis.Canvas.Font.Size:=68;

napis.Canvas.Font.Name:='Microsoft Sans Serif';

12-02-2019, 09:49 PM:

[quote pid='4685' dateline='1575293764']

So the order of declarations matters.

I have

uses

Classes, SysUtils, Vcl.Graphics, Vcl.Controls, IWAppForm, IWApplication, IWColor,

IWTypes, IWCompButton, IWCompRadioButton, IWCompExtCtrls, IWVCLBaseControl,

IWBaseControl, IWBaseHTMLControl, IWControl, IWCompEdit, IWHTMLControls;

and it has turned out that

Winapi.Windows, //for TRGBTriple and scanline

FMX.graphics, //for TBitmap;

has to be put at the beggining of the "uses" part, and now it all works only pretty slowly, comparing with the desktop app with the same code.

[/quote]

12-03-2019, 08:20 AM:

FMX.Graphics shouldn't be included in IntraWeb applications. IntraWeb uses VCL, not FMX framework.