我从我的模拟到数字转换器的开发人员那里获得了一个C windows程序的示例代码，并希望它在Visual Studio 2016中作为Windows c ++项目运行。
作为C ++的初学者，Windows API和转换器的这个通用库我现在已经不知所措了。计划是通过使代码工作来学习，但是现在很难找到问题的位置，而且没有时间从头开始学习所有东西（尽管我会尝试一下）
这是我的设置：Windows 7 64位，MS Visual Studio社区2017，USB 1608fs加上带通用库的A / D转换器
这些是我目前得到的错误：
- “HANDLE”类型的值不能用于初始化“HINSTANCE”类型的实体（第83行）
- “HGDIOBJ”类型的值不能用于初始化“HBRUSH”类型的实体（第86行）
- “HANDLE”类型的参数与参数类型“HINSTANCE”不兼容（第93行）
我到目前为止采取的行动：
以下是代码：
#include <windows.h> /* Compiler's include files's */
#include <string.h>
#include <stdio.h>
#include "cbw.h" /* Universal Library's include file */
#include "targetver.h"
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <tchar.h>
#define BOARD_NUM 0 /* Number of A/D board as defined with InstaCal */
#define ADRANGE BIP5VOLTS /* A/D voltage range */
#define TIMER_NUM 1 /* Windows timer used by this program */
HWND hWndMain; /* handle for main window */
LONG FAR PASCAL MainMessageHandler(HWND, UINT, WPARAM, LPARAM);
/************************************************************************
*
* Name: WinMain
*
* Arguments: hInstance - the instance handle for the program
* hPrevInstance - the class name of the application (not used)
* CmndLine - command line was called with (not used)
* CmndShow - indicates how to display window
*
* This is the entry point to the program. It gets called by Windows
* to start the program up. This routine creates the main window,
* initializes a timer, and then falls into the main Windows Get
* message/Dispatch message loop.
*
************************************************************************/
int PASCAL
WinMain(HANDLE hInstance, HANDLE hPrevInstance, LPSTR CmdLine, int nCmdShow)
{
MSG msg; /* MSG structure to pass to windows proc */
WNDCLASS wndclass;
char *AppName; /* Name for the window */
cbErrHandling(PRINTALL, STOPALL); /* Set library's error handling */
CmdLine = NULL; /* Not used */
AppName = "WINCDEMO"; /* The name of this application */
if (!hPrevInstance)
{
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = MainMessageHandler;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon(hInstance, AppName);
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hbrBackground = GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName = AppName;
wndclass.lpszClassName = AppName;
RegisterClass(&wndclass);
}
/* create application's Main window */
hWndMain = CreateWindow(AppName, /* Window class name */
"AIn Demo",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, /* Use default X, Y */
CW_USEDEFAULT, /* Use default X, Y */
GetSystemMetrics(SM_CXSIZE) * 12, /* x - fit text */
GetSystemMetrics(SM_CYSIZE) * 10, /* y - fit text */
NULL, /* Parent window's handle */
NULL, /* Default to Class Menu */
hInstance, /* Instance of window */
NULL); /* Create struct for WM_CREATE */
if (hWndMain == NULL)
{
MessageBox(NULL, "Could not create window in WinMain", NULL, MB_ICONEXCLAMATION);
return (1);
}
ShowWindow(hWndMain, nCmdShow); /* Display main window */
UpdateWindow(hWndMain);
// /* Start a 500ms timer to update display */
if (!SetTimer(hWndMain, TIMER_NUM, 50, NULL))
{
MessageBox(NULL, "Error starting Windows timer", NULL, MB_OK |
MB_ICONEXCLAMATION);
return (1);
}
while (GetMessage(&msg, NULL, 0, 0)) /* Main message loop */
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
UnregisterClass(AppName, hInstance);
return (msg.wParam);
}
/************************************************************************
*
* Name: MainMessageHandler
*
* Arguments: hWnd - handle to the window
* Message - message that needs to be handled
* hParam - message parameter
* lParam - message parameter
*
* This is the message dispatcher that gets called whenever Windows
* sends a message to this window. WinMain started up a timer that
* sends a message every 1/2 sec. When the message (WM_TIMER)is received
* by this routine, it reads the A/D.
* It also causes a screen update which will automatically generate a
* WM_PAINT message. The WM_PAINT handler takes care of converting the
* raw A/D values to voltages and printing them in the Window.
*
************************************************************************/
LONG FAR PASCAL
MainMessageHandler(HWND hWnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
HDC hDC; /* handle for the display device */
PAINTSTRUCT ps; /* holds PAINT information */
TEXTMETRIC tm; /* holds TEXT information */
static HRGN hRgn; /* Rectangle region Handles */
static int CharWidth, CharHeight;
static unsigned short DataVal;
int x, y;
char OutString[80], *str;
float Voltage;
switch (Message) /* Windows Message Loop */
{
case WM_CREATE:
hDC = GetDC(hWndMain); /* Get the device context for window */
GetTextMetrics(hDC, &tm); /* From context, get size of font */
CharWidth = tm.tmAveCharWidth;
CharHeight = tm.tmHeight + tm.tmExternalLeading;
ReleaseDC(hWndMain, hDC);
hRgn = CreateRectRgn(0, 0, CharWidth * 30, CharHeight * 12);
break;
case WM_TIMER: /* All Timer Events Processed Here */
InvalidateRgn(hWndMain, hRgn, FALSE); /* Force screen update */
break;
case WM_PAINT: /* Repaint client area of window */
hDC = BeginPaint(hWndMain, &ps);
x = CharWidth * 2; /* Position cursor within window */
y = CharHeight; /* One line down and 2 chars in */
str = " A/D Info"; /* Print title */
TextOut(hDC, x, y, str, strlen(str));
y += CharHeight; /* Print current index */
cbAIn(BOARD_NUM, 0, ADRANGE, &DataVal);
y += CharHeight * 2; /* Print raw data value */
sprintf(OutString, "Raw A/D value = %u ", DataVal);
TextOut(hDC, x, y, OutString, strlen(OutString));
y += CharHeight; /* Convert raw A/D to volts and print */
cbToEngUnits(BOARD_NUM, ADRANGE, DataVal, &Voltage);
sprintf(OutString, "Voltage = %.2f ", Voltage);
TextOut(hDC, x, y, OutString, strlen(OutString));
SetTextAlign(hDC, TA_LEFT | TA_TOP);
EndPaint(hWndMain, &ps);
break;
case WM_CLOSE: /* Close the window */
DestroyWindow(hWnd);
if (hWnd == hWndMain)
PostQuitMessage(0); /* Send message to Quit application */
break;
default:
return (DefWindowProc(hWnd, Message, wParam, lParam));
}
return (0l);
}
答案 0 :(得分：1)
您应该首先了解您所面临的错误，而不是随意漫游在copypasting员工周围并开启和关闭事物。例如，第一个错误：您应该在MSDN上查找HANDLE和HINSTANCE是什么，并找出从哪里获取它们。您从hInstance获得WinMain。您应该在MSDN for WinMain上查找，并确定您使用的签名有些错误，您应该使用
int CALLBACK WinMain(
_In_ HINSTANCE hInstance,
_In_ HINSTANCE hPrevInstance,
_In_ LPSTR lpCmdLine,
_In_ int nCmdShow
)
因此wndclass.hInstance = hInstance; HANDLE到HINSTANCE的{{1}}分配错误应该消失（假设我已经指出了此错误的正确行，因为您只指定了行）。
等等。