Master_piece
Power Member
Pessoal eu tenho andado a "estudar" C++ e estava aqui a tentar fazer um programa (com a ajuda de uns toturiais) com a formula resolvente (como treino), mas não acontece o que devia acontecer. As vezes não calcula, não respeita o if, etc.
Como disse sou mt novo nisto e é provavel que tenha ai uns "belos" erros.
Cumps.
Master
Código:
#include <windows.h>
#include <stdlib.h>
#include <math.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "WindowsApp";
int WINAPI WinMain (HINSTANCE hThisInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nFunsterStil)
{
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof (WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default color as the background of the window */
wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;
/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl))
return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Formula Resolvente", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
350, /* The programs width */
375, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow (hwnd, nFunsterStil);
/* Run the message loop. It will run until GetMessage() returns 0 */
while (GetMessage (&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program return-value is 0 - The value that PostQuitMessage() gave */
return messages.wParam;
}
#define ID_BUTTONcalcular 1000
HINSTANCE g_inst;
HWND EditNum1,EditNum2,EditNum3,EditTotal1,EditTotal2,EditTotal3,EditTotal4,ButtonCalcular;
void DesenharObjectos(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
EditNum1 = CreateWindowEx (
WS_EX_CLIENTEDGE,
"EDIT",
" ",
WS_VISIBLE|WS_CHILD|WS_BORDER|ES_RIGHT ,
50,50,50,20,
hwnd,
NULL,
g_inst,
NULL
);
EditNum2 = CreateWindowEx (
WS_EX_CLIENTEDGE,
"EDIT",
" ",
WS_VISIBLE|WS_CHILD|WS_BORDER|ES_RIGHT,
50,100,50,20,
hwnd,
NULL,
g_inst,
NULL
);
EditNum3 = CreateWindowEx (
WS_EX_CLIENTEDGE,
"EDIT",
" ",
WS_VISIBLE|WS_CHILD|WS_BORDER|ES_RIGHT,
50,150,50,20,
hwnd,
NULL,
g_inst,
NULL
);
EditTotal1 = CreateWindowEx (
WS_EX_CLIENTEDGE,
"STATIC",
" ",
WS_VISIBLE|WS_CHILD|ES_RIGHT,
50,250,100,20,
hwnd,
NULL,
g_inst,
NULL
);
EditTotal2 = CreateWindowEx (
WS_EX_CLIENTEDGE,
"STATIC",
" ",
WS_VISIBLE|WS_CHILD|ES_RIGHT,
50,300,100,20,
hwnd,
NULL,
g_inst,
NULL
);
EditTotal3 = CreateWindowEx (
WS_EX_CLIENTEDGE,
"STATIC",
"X1=",
WS_VISIBLE|WS_CHILD|ES_RIGHT,
8,250,40,20,
hwnd,
NULL,
g_inst,
NULL
);
EditTotal4 = CreateWindowEx (
WS_EX_CLIENTEDGE,
"STATIC",
"X2=",
WS_VISIBLE|WS_CHILD|ES_RIGHT,
8,300,40,20,
hwnd,
NULL,
g_inst,
NULL
);
ButtonCalcular = CreateWindowEx (
0,
"BUTTON",
"Calcular",
WS_VISIBLE|WS_CHILD,
150,70,100,100,
hwnd,
(HMENU)ID_BUTTONcalcular,
g_inst,
NULL
);
SendMessage((HWND) EditNum1,
(UINT) WM_SETFONT,
(WPARAM) GetStockObject(DEFAULT_GUI_FONT),
(LPARAM) lParam
);
SendMessage((HWND) EditNum2,
(UINT) WM_SETFONT,
(WPARAM) GetStockObject(DEFAULT_GUI_FONT),
(LPARAM) lParam
);
SendMessage((HWND) EditNum3,
(UINT) WM_SETFONT,
(WPARAM) GetStockObject(DEFAULT_GUI_FONT),
(LPARAM) lParam
);
SendMessage((HWND) EditTotal1,
(UINT) WM_SETFONT,
(WPARAM) GetStockObject(DEFAULT_GUI_FONT),
(LPARAM) lParam
);
SendMessage((HWND) EditTotal2,
(UINT) WM_SETFONT,
(WPARAM) GetStockObject(DEFAULT_GUI_FONT),
(LPARAM) lParam
);
SendMessage((HWND) ButtonCalcular,
(UINT) WM_SETFONT,
(WPARAM) GetStockObject(DEFAULT_GUI_FONT),
(LPARAM) lParam
);
}
char s_valor1[20] = "0", s_valor2[20] = "0", s_valor3[20] = "0", s_valortotal1[20] = "0", s_valortotal2[20] ="0";
double valor1, valor2, valor3, D, valortotal1, valortotal2;
/* This function is called by the Windows function DispatchMessage() */
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_CREATE:
DesenharObjectos(hwnd,message,wParam,lParam);
break;
case WM_COMMAND:
if ((HIWORD(wParam) == BN_CLICKED))
{
SendMessage(
(HWND) EditNum1,
(UINT) EM_GETLINE,
(WPARAM) 1,
(LPARAM) &s_valor1
);
SendMessage(
(HWND) EditNum2,
(UINT) EM_GETLINE,
(WPARAM) 1,
(LPARAM) &s_valor2
);
SendMessage(
(HWND) EditNum3,
(UINT) EM_GETLINE,
(WPARAM) 1,
(LPARAM) &s_valor3
);
valor1 = atoi(s_valor1);
valor2 = atoi(s_valor2);
valor3 = atoi(s_valor3);
switch (LOWORD(wParam))
{
case ID_BUTTONcalcular:
D = (valor2*valor2)+(-4*valor1*valor3);
if (D<0)
SendMessage(
(HWND) EditTotal1,
(UINT) WM_SETTEXT,
(WPARAM) 0,
(LPARAM) "Impossivel"
);
else
valortotal1 = ((-valor2)+sqrt(D))/(2*valor1);
valortotal2 = ((-valor2)-sqrt(D))/(2*valor1);
}
itoa (valortotal1,s_valortotal1,10);
itoa (valortotal2,s_valortotal2,10);
SendMessage(
(HWND) EditTotal1,
(UINT) WM_SETTEXT,
(WPARAM) 0,
(LPARAM) &s_valortotal1
);
SendMessage(
(HWND) EditTotal2,
(UINT) WM_SETTEXT,
(WPARAM) 0,
(LPARAM) &s_valortotal2
);
}
break;
case WM_DESTROY:
PostQuitMessage (0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}Cumps.
Master
Última edição pelo moderador:
