How to open a window in a dll project?

EDN Admin · Mar 26, 2012

Hello everybody,

I have a problem that has made me desperate! I think it is really an easy one but I really do not know why it doesnt work!
The problem is, I want to add the functionality to a DLL project to open a window and show there some information.... But I can not open the window!

Here is the code:

 
#include "stdafx.h" 
#include "faErgoPluginTypes.h" 
#include "ErgoAPSTypes.h" 
#include <iostream> 
#include <Windows.h> 
#include <string.h> 
#include <tchar.h> 
using namespace std; 
HINSTANCE hInstance; 

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
<span style="white-space

re PAINTSTRUCT ps; 
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re HDC hdc; 
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re TCHAR greeting[] = _T("Hello, World!"); 
<span style="white-space

re switch (message) 
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re { 
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re case WM_PAINT: 
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re hdc = BeginPaint(hWnd, &ps); 
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re TextOut(hdc, 5, 5, greeting, _tcslen(greeting)); 
<span style="white-space

re EndPaint(hWnd, &ps); 
<span style="white-space

re break; 
<span style="white-space

re case WM_DESTROY: 
<span style="white-space

re PostQuitMessage(0); 
<span style="white-space

re break; 
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re default: 
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re return DefWindowProc(hWnd, message, wParam, lParam); 
<span style="white-space

re break; 
<span style="white-space

re } 
<span style="white-space

re return 0; 
} 
 
void Sim::OnSimStart(TplgHandle Sende) 
{<span style="white-space

re
<span style="white-space

re <span style="white-space

re // Here I define a window resource
<span style="white-space

re HINSTANCE hInst; 
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re static TCHAR szWindowClass[] = _T("win32app"); 
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re static TCHAR szTitle[] = _T("Win32 Guided Tour Application"); 
<span style="white-space

re WNDCLASSEX wcex; 
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re wcex.cbSize = sizeof(WNDCLASSEX); 
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re wcex.style = CS_HREDRAW | CS_VREDRAW; 
<span style="white-space

re wcex.lpfnWndProc = WndProc; 
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re wcex.cbClsExtra = 0; 
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re wcex.hInstance = hInstance; 
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re wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION)); 
<span style="white-space

re wcex.hCursor = LoadCursor(NULL, IDC_ARROW); 
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re wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); 
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re wcex.lpszMenuName = NULL; 
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re wcex.lpszClassName = szWindowClass; 
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re wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION)); 
<span style="white-space

re if (!RegisterClassEx(&wcex)) 
<span style="white-space

re { 
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re MessageBox(NULL, 
<span style="white-space

re _T("Call to RegisterClassEx failed!"), 
<span style="white-space

re _T("Win32 Guided Tour"), 
<span style="white-space

re NULL); 
<span style="white-space

re //return 1; 
<span style="white-space

re 
<span style="white-space

re } 
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re hInst = hInstance; 
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re HWND hWnd = CreateWindow( 
<span style="white-space

re szWindowClass, 
<span style="white-space

re szTitle, 
<span style="white-space

re WS_OVERLAPPEDWINDOW, 
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re CW_USEDEFAULT, CW_USEDEFAULT, 
<span style="white-space

re 500, 100, 
<span style="white-space

re NULL, 
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re hInstance, 
<span style="white-space

re NULL 
<span style="white-space

re ); 
 
 
<span style="white-space

re if(!hWnd) 
<span style="white-space

re { 
<span style="white-space

re MessageBox(NULL, 
<span style="white-space

re _T("Call to CreateWindow failed!"), 
<span style="white-space

re _T("Win32 Guided Tour"), 
<span style="white-space

re NULL); 
<span style="white-space

re //return 1; 
<span style="white-space

re 
<span style="white-space

re } 
<span style="white-space

re ShowWindow(hWnd, nCmdShow); 
<span style="white-space

re UpdateWindow(hWnd); 
<span style="white-space

re MSG msg; 
<span style="white-space

re while(GetMessage(&msg, NULL, 0, 0)) 
<span style="white-space

re { 
<span style="white-space

re TranslateMessage(&msg); 
<span style="white-space

re DispatchMessage(&msg); 
<span style="white-space

re } 
<span style="white-space

re //return(int) msg.wParam; 
} 
 
 
void Sim::OnSimCycleComplete(TplgHandle Sender, TplgObjectID DeviceID, double ElapsedTime, bool IsLastDevice, bool IsHiddenRun) 
{<span style="white-space

re 
<span style="white-space

re //...... 
} 
 
 
void Sim::OnSimTargetReached(TplgObjectID DeviceID, TplgObjectID ReachedTargetID, TplgObjectID NextTargetID, TSimTargetReachedEventKind Kind) 
{ 
<span style="white-space

re //..... 
} 
 
 
long Sim::OnErgoStep(TplgHandle Sender, PplgErgoNodeData ErgoNodeData) 
{ 
 
 
<span style="white-space

re if (Device_GetActiveDeviceID() != ErgoNodeData->ActorDeviceID) 
<span style="white-space

re { 
<span style="white-space

re return erUndefined; 
<span style="white-space

re } 
 
<span style="white-space

re if (ErgoNodeData->SimTime < 0) 
<span style="white-space

re {<span style="white-space

re 
<span style="white-space

re return erUndefined; 
<span style="white-space

re } 
 
 
<span style="white-space

re StepCounter++; 
<span style="white-space

re if(StepCounter % 100 == 0) 
<span style="white-space

re { 
<span style="white-space

re 
<span style="white-space

re //...... 
<span style="white-space

re if (StepCounter % 20 == 0) 
<span style="white-space

re { 
<span style="white-space

re char DebugText1[1024]; 
<span style="white-space

re char DebugText2[1024]; 
<span style="white-space

re //char DebugText3[1024]; 
<span style="white-space

re //char DebugText4[1024]; 
<span style="white-space

re sprintf(DebugText1, "NTH X: %.2f Y: %.2f Z: %.2f",NTH[3][0],NTH[3][1],NTH[3][2]); 
<span style="white-space

re Log_Message(DebugText1); 
<span style="white-space

re 
<span style="white-space

re sprintf(DebugText2, "CTH Winkel X: %.2f Y: %.2f Z: %.2f",CTH[2][0],CTH[2][1],CTH[2][2]); 
<span style="white-space

re Log_Message(DebugText2); 
<span style="white-space

re //sprintf(DebugText3, "LTS X: %.2f Y: %.2f Z: %.2f",LTS[3][0],LeftHandToLeftShoulder[3][1],LTS[3][2]); 
<span style="white-space

re //Log_Message(DebugText3); 
<span style="white-space

re //sprintf(DebugText4, "RTS X: %.2f Y: %.2f Z: %.2f",RTS[3][0],RTS[3][1],RightHandToRightShoulder[3][2]); 
<span style="white-space

re //Log_Message(DebugText4); 
 
<span style="white-space

re }<span style="white-space

re 
}<span style="white-space

re 
} 
 
 
long Sim::UpdateActorCount() 
{ 
<span style="white-space

re long DeviceCount; 
<span style="white-space

re long Count = 0; 
<span style="white-space

re Tpfc_Device_GetDataOut DeviceData; 
<span style="white-space

re TplgObjectID DeviceID; 
 
 
<span style="white-space

re //....
<span style="white-space

re return Count; 
}

Thank you very much for any help in advance!

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How to open a window in a dll project?

EDN Admin

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