能否只用纯代码创建窗体？无*.dfm文件。
程序运行时，我想在自定义的组件上双击后弹出一个窗口，可修改组件属性。
纯代码写了class TmyForm:public TForm {...} ,然后TmyForm *mf=new TmyForm(this); 根本不行，找不到资源。
我想*.dfm文件记录了窗体的状态，则我在TmyForm类的构造函数里也确定这些状态不就可以了吗？但就是不行。
不知思路对否?
问题点数：10、回复次数：6Top
1 楼jearry_zhou（jearry）回复于 2001-07-13 17:14:36 得分 0
“纯代码写了class TmyForm:public TForm {...} ,然后TmyForm *mf=new TmyForm(this);”必须要".dfm"
除非你用SDK创建. Top
2 楼jearry_zhou（jearry）回复于 2001-07-13 17:16:15 得分 7
附简单的SDK代码：
program testwindow;
uses
Windows,
Messages;
var
WinClass: TWndClassA;
Inst, Handle, Button1, Label1, Edit1: Integer;
Msg: TMsg;
hFont: Integer;
{ Checks if typed password is 'Amigreen' and shows Message }
procedure CheckPassword;
var
Textlength: Integer;
Text: PChar;
begin
TextLength := GetWindowTextLength(Edit1);
if TextLength = 8 then
begin
GetMem(Text, TextLength + 1);
GetWindowText(Edit1, Text, TextLength + 1);
if Text = 'Amigreen' then
begin
MessageBoxA(Handle, 'Password is correct.', 'Password check', MB_OK);
FreeMem(Text, TextLength + 1);
Exit;
end;
end;
MessageBoxA(Handle, 'Password is incorrect.', 'Password check', MB_OK);
end;
{ Custom WindowProc function }
function WindowProc(hWnd, uMsg, wParam, lParam: Integer): Integer; stdcall;
begin
Result := DefWindowProc(hWnd, uMsg, wParam, lParam);
{ Checks for messages }
if (lParam = Button1) and (uMsg = WM_COMMAND) then
CheckPassword;
if uMsg = WM_DESTROY then
Halt;
end;
begin
{ ** Register Custom WndClass ** }
Inst := hInstance;
with WinClass do
begin
style := CS_CLASSDC or CS_PARENTDC;
lpfnWndProc := @WindowProc;
hInstance := Inst;
hbrBackground := color_btnface + 1;
lpszClassname := 'AG_TESTWINDOW';
hCursor := LoadCursor(0, IDC_ARROW);
end; { with }
RegisterClass(WinClass);
{ ** Create Main Window ** }
Handle := CreateWindowEx(WS_EX_WINDOWEDGE, 'AG_TESTWINDOW', 'Amigreen TestWindow 1.00',
WS_VISIBLE or WS_SIZEBOX or WS_CAPTION or WS_SYSMENU,
363, 278, 305, 65, 0, 0, Inst, nil);
{ ** Create a button ** }
Button1 := CreateWindow('Button', 'OK', WS_VISIBLE or WS_CHILD or BS_PUSHLIKE or BS_TEXT,
216, 8, 75, 25, handle, 0, Inst, nil);
{ ** Create a label (static) ** }
Label1 := Createwindow('Static', '', WS_VISIBLE or WS_CHILD or SS_LEFT,
8, 12, 76, 13, Handle, 0, Inst, nil);
{ ** Create an edit field ** }
Edit1 := CreateWindowEx(WS_EX_CLIENTEDGE, 'Edit', '', WS_CHILD or WS_VISIBLE or
WS_BORDER or ES_PASSWORD, 88, 8, 121, 21, Handle, 0, Inst, nil);
{ ** Create Font Handle ** }
hFont := CreateFont(-11, 0, 0, 0, 400, 0, 0, 0, DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH or FF_DONTCARE, 'MS Sans Serif');
{ Change fonts }
if hFont <> 0 then
begin
SendMessage(Button1, WM_SETFONT, hFont, 0);
SendMessage(Label1, WM_SETFONT, hFont, 0);
SendMessage(Edit1, WM_SETFONT, hFont, 0);
end;
{ Change label (static) text }
SetWindowText(Label1, 'Enter password:');
{ Set the focus to the edit control }
SetFocus(Edit1);
UpdateWindow(Handle);
{ ** Message Loop ** }
while(GetMessage(Msg,Handle, 0, 0)) do
begin
TranslateMessage(msg);
DispatchMessage(msg);
end; { with }
end.
Top
3 楼Wingsun（孙春阳）回复于 2001-07-13 17:51:19 得分 2
既然你的Form是继承自TForm那么就一定要有一个dfm文件了。Top
4 楼sincostan（）回复于 2001-07-13 18:52:04 得分 0
*.dfm文件能否手工创建?Top
5 楼xrbeck（ALEK）回复于 2001-07-13 21:32:25 得分 1
纯文本文件。。呵呵Top
6 楼sincostan（）回复于 2001-07-14 19:21:13 得分 0
给分吧Top
